Application of Wavelet Transform in Discrimination of Internal Fault Current and Magnetizing Inrush Current of Power Transformer
Journal Title: International Journal of Electrical and Electronics Engineering Research (IJEEER) - Year 2017, Vol 7, Issue 4
Abstract
Transmission of the power is the major challenge as utilities located at the remote places, hence proper functioning of power transformer is to be maintained. Many times, transformer encounters with no-fault condition such as inrush current, which results in unwanted tripping of transformer. So, it is necessary to discriminate fault and nofault condition on transformer, so that unwanted tripping of circuit breaker can be avoided and uninterrupted service can be maintained. This paper, present a technique based on the Continuous Wavelet Transform (CWT) to differentiate among faulted and un-faulted condition on power transformer. Transformer modeling and simulation of faulty and healthy condition are carried out using MATLAB/Simulink software. By employing CWT, suitable features are extracted as the waveform resulted from the faulty condition, and healthy condition are different in nature, after first zero crossing of fault current and Inrush current.
Authors and Affiliations
Anil K. Agawani, Archana G. Thosar
Keywords
Related Articles
- EP ID EP240283
- DOI -
- Views 150
- Downloads 0
A STOCHASTIC FUZZY CONTROLLED RESONANT CONVERTER FOR DISCHARGE LAMPS WITH PFC
The brightness of discharge lamps is controlled by varying the frequency of the resonant converter for high efficiency operation. In this paper we introduce a resonant converter with a magnetic energy recovery switch alo...
Automated Gallery Lighting System and Seepage Water Control in Dam
Now a day energy crisis in India is a critical issue. The present gallery lighting is controlled by manually and is leds to energy loss. The lighting system in the drainage gallery of the dam required during the maintena...
LOAD SHARING WITH PARALLEL INVERTERS FOR INDUCTION MOTOR DRIVE APPLICATION
Multi-level inverters use is becoming more in common these days due to its advantages over conventional inverters. Inverters driven motor drives are very much promising method for efficient operation increasing cost effe...
Modelling and Simulation of BLDC Motor for Industrial Applications
Permanent magnet synchronous motor has attracted by various applications such as commercial, domestic and industrial due to low cost and its several advantages. The main purpose of this paper is to describe Brushless DC...
Low Cost BLDC Drive Using Single Current Sensor
This paper provides a technique to minimize torque ripple in BLDC motor by using single current sensor. There are number of techniques avail to minimize torque ripple. This paper proposes hysteresis current controller. B...